General-Purpose Conversational AI Chatbots
User-friendly chatbots designed for a wide range of tasks like answering questions, writing, coding help, and general conversation.
| Name (Provider) | Capabilities | Pricing Model | Website |
|---|---|---|---|
| Microsoft Copilot (Microsoft) | General conversation, web search integration (Bing), coding help, image generation, integrated into Windows/Edge/Office 365. Often uses latest OpenAI models (e.g., GPT-4). | Generous Free Tier (often no sign-in for basic use), Paid versions via Microsoft 365. | copilot.microsoft.com |
| Google Gemini (Google) | Conversational AI, real-time web search integration, coding assistance, multimodal capabilities (text, image), integration with Google Workspace. Uses Gemini models (e.g., 1.5 Pro/Flash). | Generous Free Tier (Gemini Pro/Flash), Paid (Gemini Advanced). Requires Google Account. | gemini.google.com |
| ChatGPT (OpenAI) | Industry standard, strong reasoning, writing, coding, math. Multimodal input/output (text, images, data analysis). Custom GPTs. Uses GPT-3.5, GPT-4o models. | Robust Free Tier (GPT-3.5 / limited GPT-4o), Paid (Plus/Team plans for advanced models & features). Requires sign-up. | chat.openai.com |
| Claude (Anthropic) | Focus on safety, helpfulness, and detailed reasoning. Large context window for analyzing long documents. Strong coding & writing. Uses Claude 3 models (Haiku, Sonnet, Opus). | Generous Free Tier (Sonnet/Haiku), Paid (Pro plan for Opus & higher limits). Requires sign-up. | claude.ai |
| Perplexity AI (Perplexity AI) | Conversational search engine focused on providing answers with real-time web citations. Good for research and fact-checking. Can use various models (incl. GPT-4, Claude). | Good Free Tier (can often use without sign-up), Paid (Pro plan for more advanced model access & features). | perplexity.ai |
| Grok (xAI) | Real-time access to X (Twitter) data, witty tone, reasoning capabilities. DeepSearch mode. Uses Grok models. | Paid (Requires X Premium+ subscription for full access), Limited free queries may be available. | grok.x.ai (or via X platform) |
| Meta AI (Meta) | General-purpose chatbot integrated into Meta platforms (WhatsApp, Instagram, Facebook). Uses Llama models (e.g., Llama 3). Image generation. | Free (integrated into existing Meta services). | meta.ai |
| Le Chat (Mistral AI) | High-performance chatbot from Mistral AI, known for strong reasoning and multilingual capabilities. Uses Mistral Large/Small models. | Free Chat Interface, Paid API access. Underlying models have open-weight options. | chat.mistral.ai |
| Hugging Face Chat (Hugging Face) | Platform allowing interaction with various open-source models (like Llama, Mistral variants). Customizable. | Free (uses open-source models, usage limits may apply). | huggingface.co/chat |
| Poe (Quora) | Platform aggregating access to multiple AI models (ChatGPT, Claude, Gemini, Llama, etc.) in one interface. Allows creation of custom bots. | Free Tier (limited access to various models), Paid subscription for higher limits and premium models. | poe.com |
| YouChat (You.com) | Search-integrated chatbot providing quick answers with citations, similar to Perplexity. | Free Tier available. | you.com/chat |
LLM Inference Services (Developer Focused)
Platforms providing API access to large language models for developers to build custom applications.
| Name (Provider) | Capabilities | Pricing Model | Website |
|---|---|---|---|
| OpenAI API (OpenAI) | API access to powerful models like GPT-4o, GPT-4, embeddings, image generation (DALL·E), speech-to-text (Whisper). Fine-tuning options. | Paid (Pay-as-you-go), Free trial credits often available for new users. | platform.openai.com |
| Anthropic API (Anthropic) | API access to Claude models (Haiku, Sonnet, Opus) known for safety, reasoning, and large context windows. | Paid (Pay-as-you-go), Limited free tier/trial credits may be available upon request. | www.anthropic.com/api |
| Google Cloud Vertex AI (Google) | API access to Google's models (Gemini series, PaLM, Gemma). Integration with Google Cloud services. Multimodal capabilities. Fine-tuning. | Paid (Pay-as-you-go), Free trial credits ($300) often available for new Google Cloud users. | cloud.google.com/vertex-ai |
| Hugging Face Inference API (Hugging Face) | API access to thousands of models hosted on Hugging Face Hub, including many open-source options (Llama, Mistral, etc.). Text, image, audio models. | Free Tier (limited usage), Paid plans for higher throughput/dedicated infrastructure. Facilitates open-source model access. | huggingface.co/inference-api |
| Mistral AI API (Mistral AI) | API access to Mistral's high-performance models (Mistral Large, Small, 7B, Mixtral). Known for efficiency and open-weight options. | Paid (Pay-as-you-go for API), Open-weight models available for self-hosting. | mistral.ai/product/ |
| Cohere API (Cohere) | API access focused on enterprise NLP tasks like text generation, classification, embeddings. Strong multilingual support. | Paid (Pay-as-you-go), Free tier for developers/experimentation. | cohere.com/models |
| DeepSeek API (DeepSeek) | API access to DeepSeek models, known for strong coding and reasoning capabilities. Some models are open-source. | Free Tier (limited daily queries), Paid (Pay-as-you-go). | platform.deepseek.com |
| GroqCloud (Groq) | Ultra-fast LLM inference service using specialized LPU hardware. Supports open-source models like Llama, Mistral variants at very high speeds. | Paid (Pay-as-you-go, often very competitive pricing), Free limited access may be available for experimentation. | groq.com |
| Together AI API (Together AI) | Platform providing fast inference for a wide range of open-source and some proprietary models. Focus on speed and cost-effectiveness. | Paid (Pay-as-you-go), Free credits often available for new users. | together.ai |
Open-Source Models & Platforms
Models with publicly available weights or platforms primarily focused on hosting/running open-source AI.
| Name (Provider/Origin) | Capabilities | Pricing Model | Access / More Info |
|---|---|---|---|
| Llama Series (Meta AI) | Highly capable family of models (Llama 2, Llama 3). Strong reasoning, coding, conversation. Different sizes available (e.g., 8B, 70B parameters). | Open Source (License permits commercial use with restrictions). Free to download and run locally or via cloud platforms/APIs. | ai.meta.com/llama |
| Mistral Open Weights (Mistral AI) | Includes models like Mistral 7B and Mixtral 8x7B. Known for high efficiency and performance relative to size. Apache 2.0 license. | Open Source (Apache 2.0). Free to download and use. | mistral.ai/technology |
| Gemma Series (Google) | Family of lightweight, state-of-the-art open models built from the research behind Gemini. Available in different sizes (e.g., 2B, 7B). | Open Source (License permits commercial use). Free to download and use. | ai.google.dev/gemma |
| DeepSeek Open Source Models | Includes DeepSeek Coder and general LLM models. Known for strong performance, particularly in coding tasks. | Open Source (License permits commercial use). Free to download and use. | DeepSeek GitHub |
| Hugging Face Hub (Hugging Face) | Central platform for discovering, downloading, and sharing thousands of open-source AI models (LLMs, vision, audio), datasets, and demos (Spaces). | Platform is Free to browse/download. Paid tiers for private repos, accelerated inference, etc. | huggingface.co/models |
Niche & Specialized Tools
AI tools focused on specific applications like personal companionship, character interaction, or business tasks.
| Name (Provider) | Capabilities | Pricing Model | Website |
|---|---|---|---|
| Pi, your personal AI (Inflection AI) | Designed to be a supportive and conversational companion. Focuses on empathetic conversation rather than task completion. Very easy access (Web, App, WhatsApp). | Free. | pi.ai |
| Character.AI (Character Technologies) | Platform for creating and interacting with AI characters (fictional, historical, custom). Focus on role-playing and entertainment. | Free Tier available, Optional paid subscription (c.ai+) for faster responses and early access. | beta.character.ai |
| Replika (Luka, Inc.) | AI companion designed for emotional connection and conversation. Offers features like journaling and coaching. | Free Tier available, Paid Pro version unlocks more features and customization. | replika.ai |
| Jasper (Jasper AI) | AI writing assistant focused on marketing and business content creation. Offers templates, brand voice features, and integrations. | Paid (Subscription plans), Free trial often available. | jasper.ai |
| Tidio (Tidio) | Customer service platform with AI chatbot features (Lyro AI). Focuses on automating customer support for small/medium businesses. | Free Plan available (limited features), Paid plans for more capabilities. | tidio.com |